Canon EF 100mm f/2.8 Macro USM Lens.

The Canon EF 100mm F/2.8 Macro USM Lens is a telephoto lens with a macro feature providing a 1.0x magnification. With eight aperture blades, creative background blur is possible to help make the subject stand out. It features a focusing limiter switch which limits the focus range to improve AF speed. Canons ring USM auto focus system has fast, accurate and virtually silent operation. Full-time manual focus override, via a large ring that does not rotate during auto focus, allows photographers to fine-tune focusing instantly. Super Spectra coatings help ensure accurate colour balance and high contrast, and suppress flare and ghosting by absorbing light that might be reflected off internal lens elements and image sensor. Model number ef 100mm.